植物生理学：其它几种新的植物激素
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Methyl jasmonate (MeJA)
OCH3
Yan, J., Zhang, C., Gu, M., Bai, Z., Zhang, W., Qi, T., Cheng, Z., Peng, W., Luo, H., Nan, F., Wang, Z., and Xie, D. (2009). The Arabidopsis CORONATINE INSENSITIVE1 protein Is a jasmonate receptor. Plant Cell 21: 2220-2236.
European corn borer Ostrinia nubilalis
in its host Zea mays
Images courtesy Clemson University - USDA Cooperative Extension Slide Series, Bugwood.org; Charles Averre, North Carolina State University, Bugwood.org
and biotrophic pathogens （活体营养 型病原体）trigger
salicylate production
Jasmonates Salicylates
Transcriptional responses
Jasmonates also contribute to developmental and growth controls
Wounding, pathogens and herbivores trigger rapid accumulation of jasmonates
JA
MeJA Untreated control
Demole, E. Lederer, E., and Mercier, D. (1962) Isolement et détermination de la structure du jasmonate de méthyle, constituant odorant charactéristique de l’èssence de jasmin. Helv. Chim. Acta 45: 675 -685; Gundlach, H., Müller, M.J., Kutchan, T.M., and Zenk, M.H. (1992). Jasmonic acid is a signal transducer in elicitor-induced plant cell cultures. Proc. Natl. Acad. Sci. 89: 2389-2393.
Methyl jasmonate was purified from Jasminum grandiflorium（素馨属） in 1962
CH2COOCH3
O
“Jasmonate de méthyle”
Like other esters酯, methyl jasmonate smells good – it is the dominant scent from jasmine flowers
Jasmonates include jasmonic
acid (JA) and derivatives
Jasmonic acid (JA)
JA-Isoleucine (JA-Ile)
(3R,7S)-jasmonic acid
a.k.a.
OH
(+)-7-iso-jasmonic acid
JA-Ile
Male and female reproductive development
பைடு நூலகம்
Trichome formation
Also cell cycle control, senescence, mutualistic interactions....
Li, L., Zhao, Y., McCaig, B.C., Wingerd, B.A., Wang, J., Whalon, M.E., Pichersky, E., and Howe, G.A. (2004). The tomato homolog of CORONATINEINSENSITIVE1 is required for the maternal control of seed maturation, jasmonate-signaled defense responses, and glandular trichome development. Plant Cell 16: 126-143; Reprinted by permission from Macmillan Publishers Ltd. Thines, B., Katsir, L., Melotto, M., Niu, Y., Mandaokar, A., Liu, G., Nomura, K., He, S.Y., Howe, G.A., and Browse, J. (2007). JAZ repressor proteins are targets of the SCFCOI1 complex during jasmonate signalling. Nature 448: 661-665.
to insects and disease!
Jasmonates and salicylates are hormones that participate in plant defense responses
Phytophthora capsici on cucumber (Cucumis sativus)
Jasmonates induce defenses to insects and necrotrophic pathogens
To a first approximation,
insects and necrotrophic pathogens （死体营养 型病原体）trigger
jasmonate production,
Pathogens and pests cause significant crop losses
Most plants are resistant to most pests, but a few organisms cause tremendous damage. 25% or more of
potential harvests can be lost
OCH3
Yan, J., Zhang, C., Gu, M., Bai, Z., Zhang, W., Qi, T., Cheng, Z., Peng, W., Luo, H., Nan, F., Wang, Z., and Xie, D. (2009). The Arabidopsis CORONATINE INSENSITIVE1 protein Is a jasmonate receptor. Plant Cell 21: 2220-2236.
European corn borer Ostrinia nubilalis
in its host Zea mays
Images courtesy Clemson University - USDA Cooperative Extension Slide Series, Bugwood.org; Charles Averre, North Carolina State University, Bugwood.org
and biotrophic pathogens （活体营养 型病原体）trigger
salicylate production
Jasmonates Salicylates
Transcriptional responses
Jasmonates also contribute to developmental and growth controls
Wounding, pathogens and herbivores trigger rapid accumulation of jasmonates
JA
MeJA Untreated control
Demole, E. Lederer, E., and Mercier, D. (1962) Isolement et détermination de la structure du jasmonate de méthyle, constituant odorant charactéristique de l’èssence de jasmin. Helv. Chim. Acta 45: 675 -685; Gundlach, H., Müller, M.J., Kutchan, T.M., and Zenk, M.H. (1992). Jasmonic acid is a signal transducer in elicitor-induced plant cell cultures. Proc. Natl. Acad. Sci. 89: 2389-2393.
Methyl jasmonate was purified from Jasminum grandiflorium（素馨属） in 1962
CH2COOCH3
O
“Jasmonate de méthyle”
Like other esters酯, methyl jasmonate smells good – it is the dominant scent from jasmine flowers
Jasmonates include jasmonic
acid (JA) and derivatives
Jasmonic acid (JA)
JA-Isoleucine (JA-Ile)
(3R,7S)-jasmonic acid
a.k.a.
OH
(+)-7-iso-jasmonic acid
JA-Ile
Male and female reproductive development
பைடு நூலகம்
Trichome formation
Also cell cycle control, senescence, mutualistic interactions....
Li, L., Zhao, Y., McCaig, B.C., Wingerd, B.A., Wang, J., Whalon, M.E., Pichersky, E., and Howe, G.A. (2004). The tomato homolog of CORONATINEINSENSITIVE1 is required for the maternal control of seed maturation, jasmonate-signaled defense responses, and glandular trichome development. Plant Cell 16: 126-143; Reprinted by permission from Macmillan Publishers Ltd. Thines, B., Katsir, L., Melotto, M., Niu, Y., Mandaokar, A., Liu, G., Nomura, K., He, S.Y., Howe, G.A., and Browse, J. (2007). JAZ repressor proteins are targets of the SCFCOI1 complex during jasmonate signalling. Nature 448: 661-665.
to insects and disease!
Jasmonates and salicylates are hormones that participate in plant defense responses
Phytophthora capsici on cucumber (Cucumis sativus)
Jasmonates induce defenses to insects and necrotrophic pathogens
To a first approximation,
insects and necrotrophic pathogens （死体营养 型病原体）trigger
jasmonate production,
Pathogens and pests cause significant crop losses
Most plants are resistant to most pests, but a few organisms cause tremendous damage. 25% or more of
potential harvests can be lost